Hand lay-up

An open mould fabrication method in which reinforcement layers are placed in mould by hand, saturated with resin and then cured to the formed shape.

This is usually accomplished by rollers or brushes, with an increasing use of nip-roller type impregnators for forcing resin into the fabrics by means of rotating rollers and a bath of resin. Laminates are left to cure under standard atmospheric conditions.